TASK DEFINITION: You are given a sentence and your task is to generate another sentence that supports the given input.
PROBLEM: Amino acid A functional group which consists of a carbon with a carboxylic acid, &quot;-COOH&quot; and an amine, &quot;-NH 2 .

SOLUTION: Amino acids contain both a carboxylic acid group and a(n) amine group.

PROBLEM: Within the past 200 years or so, increased amounts of carbon dioxide and other greenhouse gases have been released into the atmosphere due to human activity.

SOLUTION: The composition of the atmosphere has changed over the last 200 years primarily due to human activity.

PROBLEM: This is the water cycle and it just keeps repeating.

SOLUTION:
The water cycle ends with it repeats itself.

